Unlike in TOEFL, candidates in the IELTS test can expect to hear a variety of accents, from regional British accents to North American and Southern Hemisphere accents such as Australian and South African English. It’s a curious footnote to the history of IELTS, which began as ELTS but gained its initial ‘I’ when more English-speaking countries were invited to recognise the test for immigration purposes. If you’re not a natural show-off who enjoys flipping between accents in class, there’s a comparison of different English accents here.
IELTS candidates are expected to be able to spell answers correctly. However, English allows for multiple spellings of names, so you can expect these words to be spelled out, e.g. I.E.L.T.S. This is most likely to happen in IELTS Listening Section 1 where filling out personal details is a common question type. Drill spellings multiple times, paying special attention to the errors that are most common for your language group. The letter ‘W’ is notoriously problematic as it’s easily confused with the ‘double-X’ modifier in spelling.